baber/WOPTO huggingface dataset:
Patent GB-444416-A (GB)
Title: Thermionic valves
IPC: H01J19/42
Filed: 1934-11-06
Abstract: 444,416. Thermionic valves. LASZLO, S. P. DE, 22, Rutland Court, South Kensington, London. Nov. 6, 1934, No. 31915. [Class 39 (i)] A thermionic valve comprises a plurality of electrodes extending between mica plates arranged at the top and bottom to form a self-supporting unit, and a tubular glass envelope, the mica plates being of such size as to have a push fit in the envelope which, after the insertion, is contracted on to flexible leads extending from the various electrodes. In the example shown, a triode electrode structure is assembled as a rigid unit A and the continuous glass envelope B has initially a flared open end and a narrow exhaust tube 4 at the other end. The unit A comprises a filamentary cathode 9, grid 8, and anode 6 supported rigidly by mica plates 1, 2. Stretchers, as shown at 11, may be provided to give additional rigidity to the structure. The plates have projecting portions, as shown in Fig. 5, which engage the walls of the envelope when the unit is pushed in. The flared end is then softened and contracted on to flexible leads 3 to form the pinch 5, Fig. 4. After exhaustion, the tube 4 is sealed off, and the completed valve is provided with a cap having pin or other suitable contact elements. To ensure correct insertion into the valve holder, the pins may be made of different lengths or diameters, and in addition or alternatively a lateral projection may be provided on the cap which engages a groove or like means on the holder. Examples are also described of screen grid and pentode valves constructed according to the invention, the former being shown with the anode lead sealed through the exhaust tube and connected to a metal cap. The electrodes of the latter are flattened cylinders and the cathode is supported by spring hooks from an additional mica plate supported on extensions of the screen grid supports. Indirectly-heated cathodes may be employed.
Patent GB-1362023-A (GB)
Title: Process for the manufacture of a pyroglutamylpeptide
IPC: C07K5/097
Filed: 1971-07-07
Abstract: 1362023 Pyroglutamylpeptide FARBWERKE HOECHST AG 7 July 1971 [7 July 1970] 31967/71 Heading C2C  Pyroglu-His-ProNH 2  is prepared by refluxing a compound (IV) (in which R 1  and R 2  are H, 4,4<SP>1</SP>-dimethoxybenzohydryl (MbH) 2,4-dimethoxybenzyl, 2,4,6- trimethyl benzyl or xanthyl, provided R 1  and R 2  are not both H; and Y is tert-butyloxycarbonyl (BOC), benzyloxycarbonyl (Z), adamantyloxy carbonyl or isoboinyloxycarbonyl) with a mixt of trifluoroacetic acid and either anisole or phenol or both. When Y = Z the hydrolysis may be preceded by catalytic hydrogenation. Compounds IV may be obtained by condensing a compound (I)  or an activated ester thereof with a compound (II) or condensing a compound (IIIa) with a compound (IIIb) Z Sln - (Mbh) - HisOMe, Z - Sln(Mbh)HisOH, Z-ProNH.MbH, H-ProNHMbh, and Z-HisPro- NHMbh are also prepared.
Patent GB-1425319-A (GB)
Title: Casting solutions
IPC: B01D71/48
Filed: 1972-12-18
Abstract: 1425319 Membrane casting solutions CHEMICAL SYSTEMS Inc 18 Dec 1972 [16 Dec 1971] 32007/75 Divided out of 1425318 Heading C3R and C3P Membrane casting solutions comprise a polyester of a dibasic aromatic acid and a 3-7 C alkylene diol and polyvinyl alcohol or polyvinyl pyrrolidone in hexafluoroisopropanol or trifluoroacetic acid or mixtures thereof. Solutions contain up to 20% of the total resins and preferred polyesters are polytrimethylene and polypentamethylene terephthalates.
Patent GB-470837-A (GB)
Title: Improvements in and relating to hydraulic transmission mechanism
IPC: F16H61/50
Filed: 1935-11-19
Abstract: 470,837. Hydraulic transmission of power. GARVAR HYDRAULIC TRANSMISSION PROPRIETARY, Ltd. Nov. 19, 1935, No. 32031. Void. Convention date, Feb. 13. [Class 69 (ii)] Hydraulic transmission mechanism comprises an impeller 11 fitted with spur gear pumps, a turbine 31 with blades 32, 33, 34, and reaction blades 35, 35a carried by the stationary casing 5. One of the gears of each spur gear pump has on its spindle a pinion 14 meshing with a sunwheel 15; the latter may be held stationary by engaging clutch members 20, 21, or be left free to rotate. The freeing is effected when the driving shaft 6 is coupled to the driven shaft 7 by moving a slidable member 39 to the right. When the member 39 is moved to the left, the secondary shaft 8 is coupled to the driven shaft 7, and the sunwheel is then locked. In the latter condition, a reverse drive may be effected by engaging a slidable pinion 52 with an idler pinion 53.
Patent GB-1048994-A (GB)
Title: A process for soft chromium plating of metal objects
IPC: C25D3/04
Filed: 1963-08-14
Abstract: A process for forming a soft chromium plate on metals e.g. cast iron pistons, consists in applying a current density of 50 to 100 AS Dm. at 25 to 40 DEG C.  An initial CD of up to 180 AS Dm may be applied for 30 secs.  A bath containing CrO3 and H2SO4 is used and is free of alkali.  The coating may be polished by brushing: a soft coating 15m thick is formed in a few minutes.
Patent GB-1360386-A (GB)
Title: Gas turbine engine
IPC: F02C7/36
Filed: 1970-07-02
Abstract: 1360386 Gas turbine engines J R B ANDERSON (A C WICKMAN) 23 June 1971 [2 July 1970] 32101/70 Heading F1G A gas turbine engine comprises a compressor 21 mounted on a shaft 23 and a turbine 1, 2 mounted on a shaft 3, the turbine being drivingly connected to the compressor also to an output drive-shaft 15 through an epicyclic gear assembly 9. A pinion 6 on the turbine shaft 3 engages a gear 7 which constitutes a planet carrier carrying pinions 10 which engage a sun gear 11 and an internal ring gear 12 the latter constituting the reaction member of the gearing and may be held stationary by means of a brake 26. The sun gear 11 is formed with a gear 20 which engages a pinion 22 on the compressor shaft 23. The internal ring gear 12 is secured to an extension 25 which is formed with a braking surface 26. The extension 25 is drivingly connected to the output shaft 15 through a one-way clutch 27. In the event of the output shaft being driven from the road wheels of a vehicle the drive is taken through a one-way clutch 28 so that the compressor is driven and acts as a brake.
Patent GB-1096864-A (GB)
Title: Polythylene compositions and their manufacture
Inventor: MANN JACK
IPC: C08L23/06
Filed: 1965-08-10
Abstract: Compositions comprise a blend of (A) a polyethylene of weight average molecular weight lying within the range 90,000 to 150,000 and having a Q value between 3 and 5 and a melting point in the range 128 to 135 DEG  C., and 10 to 40 weight per cent of (B) a polyethylene having a weight average molecular weight below 17,500, a density of at least 0.97 gm./cc. at 23 DEG  C. and a melting point in the same range as that of polyethylene (A).  The blends may be prepared by mixing at elevated temperature, and may contain conventional additives such as stabilizers and antioxidants.  The Q value is the ratio of weight average molecular weight to number average molecular weight.
Patent GB-796889-A (GB)
Title: Improvements in rotary filtering apparatus
Inventor: WILSON EMANUEL
IPC: B01D33/11
Filed: 1955-11-11
Abstract: 796,889. Rotary filters. DAWSON BROS., Ltd. Nov. 6, 1956 [Nov. 11, 1955], No. 32258/55. Class 46. A rotary filter comprises a conical perforated drum A, the axis of which is horizontal, mounted for rotation in bearings in a tank B. Liquid to be filtered enters the drum axially through a delivery pipe D<SP>1</SP> mounted within the smaller end of the drum A or within a bush D fixed to the smaller end of the drum. The filtrate passes into the tank B and is removed through a suction pipe A<SP>2</SP> while the residue is discharged through the larger end of the drum. The larger end of the drum is provided with a peripheral track a engaging rollers c while at the other end the bush D attached to the drum is driven through a driving sprocket d. In a modified form a baffle mounted on a shaft passing centrally through the drum is provided to retard the flow of the residue such as pulp from a bottle washing plant.
Patent GB-990653-A (GB)
Title: Improvements in or relating to high pressure lubricants
IPC: C10M173/00
Filed: 1962-08-22
Abstract: A salt is formed by reacting 12 parts of N - mono - C16- 20 alkyl - trimethylene diamine with 7.4 parts of 80% orthophosphoric acid at 90 DEG  C. and agitating until the mixture is cool.ALSO:A high pressure lubricant composition comprises, as a lubricatingly-effective ingredient, a reaction product of orthophosphoric acid and an N - mono - C16- 20 alkyl - trimethylene diamine. Specified compositions, used for metal shaping, particularly wire drawing, contain the above ingredient, and at least some of the following:-vegetable and/or animal fats, mineral and/or synthetic oils, emulsifiers, anti-corrosion agents, ortho-phosphoric acid, an accelerator (e.g. boric acid) and water. The lubricant composition is preferably used in the form of an emulsion or paste.
Patent GB-604702-A (GB)
Title: Improvements in or relating to the steering of agricultural tractors
IPC: A01B69/00
Filed: 1945-11-30
Abstract: 604,702. Steering agricultural tractors. WATKINS, H. W. Nov. 30, 1945, No. 32350. Class 79 (v)] In an agricultural tractor having a single front steering wheel, the steering column is jointed so that the driver may move it in a vertical plane, so that when in a lowered position it does not obstruct the driver's view and when raised permits a quick steering action. As shown, the tractor comprises a front wheel 1, mounted in forks 2 and attached to the lower half 3 of a steering column which is rotatably mounted in a bearing 4 attached to the vehicle chassis 5. A pair of ears 7 are bolted to the column 3, between which is mounted to pivot in a vertical plane, the upper half 6 of the steering column. The column 6 is provided with a handle bar 9.
Patent GB-1153946-A (GB)
Title: Urea-Furfurol Condensation Products And A Process For Their Production
IPC: C08G12/12
Filed: 1967-07-13
Abstract: 1,153,946. Nitrogenous fertilizers. SCHOLVEN-CHEMIE A.G. 13 July, 1967 [16 July, 1966], No. 32356/67. Heading C1B. [Also in Division C2] Fertilizers having a N-content of 26-35% are prepared by condensing urea with a mixture of furfurol and formaldehyde in aqueous solution in the presence of a condensation catalyst. An excess of urea may be present.
Patent GB-624525-A (GB)
Title: Improvements in thermionic valve amplifiers
IPC: H03F3/36
Filed: 1946-10-31
Abstract: 624,525. Valve circuits. YARBOROUGH, E. H. COOKE-. Oct. 31, 1946, No. 32366. [Class 40 (v)] The gain of a thermionic valve amplifier stage is varied by reducing the signal frequency current in part of the anode load resistor whilst maintaining the current in the remainder substantially constant. In this way the change in gain is made substantially independent of the particular valve characteristics and the frequency response of the stage is unaffected by the gain setting. In the Figure, the screen grid of the valve is connected to the junction of the two parts 1, 2 of the anode load resistor, and the suppressor grid may be connected in the " high-gain " position 10 to cathode, when the stage operates in the normal manner. In the " low-gain " position 11 the suppressor is connected at 6 to a source of negative bias of sufficient voltage to cut-off the flow of current to the anode, thereby reducing the gain of the stage. It is shown that the ratio of gain of the stage in these two positions is independent of the mutual-conductance of the valve. The gain of the stage may be remotely controlled by locating the switch 9 at a distance from the valve and the control may be made continuously variable by connecting the suppressorgrid to the movable contact of a potentiometer connected across a bias source.
Patent GB-1078004-A (GB)
Title: An expansible sheet
Inventor: ATTACH STANLEY ALBERT WAYLAND
IPC: F17C3/02
Filed: 1964-08-10
Abstract: 1,078,004. Corrugated sheets. AKTIENGESELLSCHAFT "WESER". Aug. 10, 1964, No. 32525/64. Heading E1K. [Also in Division F4] Metal sheet particularly for tanks for liquefied gases comprises one or more corrugations 1, crossing another corrugation or corrugations 2, the corrugation 1 being on the opposite side of the sheet to the corrugation 2 and the folds 3, 3a of the corrugation 2 zigzagging from one to another of the folds 4 of the other corrugation 1 and the folds of each corrugation being alternately oppositely bent. The crest fold 3a divides into two zigzag folds enclosing a valley 8.
Patent GB-833254-A (GB)
Title: Improvements in or relating to waterproof baby-drawers
IPC: A41B13/04
Filed: 1956-10-25
Abstract: 833,254. Diapers. HEMMINGSSON, N. A H. Sept. 12, 1957 [Oct. 25, 1956], No. 32586/56. Class 141 A waterproof diaper cover has pockets 11, 15 at its ends and a tapered crutch portion 13. The cover is made of thermoplastic sheet material and has welded seams as at 21, Fig. 2. Press studs 16 are provided for fastening the cover about the waist, the elements of the press studs being riveted through the elastic bands 17-20.
Patent GB-378726-A (GB)
Title: Improvements in hydraulic couplings, gears or brakes
IPC: F16D33/10
Filed: 1931-11-24
Abstract: 378,726. Fluid-friction brakes. SINCLAIR, H., Ceylon Works, Worton Road, Isleworth, Middlesex. Nov. 24, 1931, No. 32596. Convention date, Nov. 26, 1930. [Class 103 (i).] A hydraulic coupling, gear, or brake is provided with emptying means utilizing the energy of circulation of the liquid. The mouth 10, Fig. 1, of a tube 11 may be arranged in the working circuit as shown, or may take the place of the core 7, 8. In other forms, the tube 11 may communicate with a space 9, Fig. 4, formed in the part of the core carried by the driven or driving member, and if desired with a chamber 21, Fig. 5, in which is a stationary withdrawal tube 17. The vanes 23 on the driving member may be lengthened to extend across the mouth of the emptying means, the vanes 25 on the driven member being correspondingly shortened, or both sets may be formed to provide a tapering free space, as shown in Fig. 8. The exits of the tubes 11 may be controlled by valves, such as 27, operable while the coupling is in operation. Specifications 328,028, [Class 103 (i), Brakes &c.], and 361,342, [Group XXIX], are referred to.
Patent GB-534052-A (GB)
Title: Improvements in or relating to well tools, such as elevators
IPC: E21B19/06
Filed: 1939-12-20
Abstract: 534,052. Well tools. STEVENS, A. H. (Jackson Co., B.). Dec. 20, 1939, No. 32598. [Class 85] In a well tool, such as an elevator, comprising a body 10 and a gate 21 pivoted thereto, and  means to lock the parts in closed position around casing, pipe &c. the body and gate have, both at the hinged end and at the free end, interlocking parts 18, adapted to prevent relative horizontal opening movement without relative vertical movement, and the gate pivotally carries a latch 28 having a pin 29 adapted to lock the parts against relative vertical movement, while on freeing the pin 29, a projection 30 on the latch is adapted to engage the body to form a fulcrum to assist in effecting such vertical movement.
Patent GB-430980-A (GB)
Title: Improvements in or relating to warning or indicating devices such as reflecting devices for attaching to wearing apparel
IPC: G08B5/00
Filed: 1933-11-22
Abstract: 430,980. Satchels &c. POWELL, E., Elmer Cottage, Elmer Beach, near Bognor Regis, Sussex. Nov. 22, 1933, No. 32625. [Class 133] [See also Groups VII, XX, and XXXVIII] A reflector device for attachment to satchels, rucksacks, &c. comprises a button, buckle, slide, or plate having one or more glass or polished metal reflectors and one or more loops, eyes or the like to receive a belt, strap, sewing thread or other attaching means. The reflectors 4 may be mounted in a face plate 1 of bone, pearl, or metal &c. which may be secured to a rear plate 2 by screwing, swaging or by interengaging lugs and slots. The device may also be secured to articles of wearing-apparel by adhesive. Specification 233,002, [Class 97 (i)], is referred to. Reference has been directed by the Comptroller to Specifications 28450/12, 29545/12, 183,200, [all in Class 118 (ii)], 264,328, 266,585, 280,031, 316,806, [all in Class 97 (i)], and 388,973, [Group XXXVIII].
Patent GB-1056047-A (GB)
Title: Overhead ropeway for conveying loads
IPC: B66C21/00
Filed: 1963-08-19
Abstract: 1,056,047. Ropeway cranes. J. KOLLER. Aug. 19, 1963 [Sept. 8. 1962], No. 32632/63. Heading B8B. The crab 1, Fig. 1, of a ropeway crane has a clamp for holding it stationary on the rope which is interlocked with a locking device which holds a lifting hook 24 in the raised position. As the crab travels along the rope 3 a shaft 6, driven by wheels 2 through a belt 5, operates a pump 7 which pumps oil from a tank 11 through a valve 10 into a reservoir 8. This continues until a sleeve 9, which moves against a spring; moves the inner stem of the valve 10 to the right, thereby causing the oil to be pumped to the tank 11. As it moves, the sleeve 9 turns a lever 14 about a shaft 30 by a cable 15 until a gear 17 engages a gear on the shaft 6. This turns a gear 16. a shaft 30 and a jaw 29. Fig. 6, clockwise so that a toothed sleeve 28 supporting a hammer 18 is not moved. If the crab is arrested and reversed for a short distance the jaw 29 rotates in the opposite direction and turns the sleeve 28 and hammer 18 so that the latter is lifted and drops on the opposite side of the shaft 30 in Fig. 1. In so doing it strikes a bracket 19 and causes it to depress a valve stem 22. This allows oil under pressure from the reservoir 8 to pass to hydraulic cylinders which clamp the crab to the rope 3 and release the load hook 24. A cylinder 49, Fig. 4, withdraws pins 43, 44 and a burden 37, Fig. 3, on the hook 24 descends. As it does so it pushes a lever 55 which withdraws pegs 47, 48, Fig. 4; through levers 51, 54, Fig. 3, from the pins 43. 44. A cylinder 79, Fig. 8, clamps jaws 76, 77 on to the rope 3. In a further embodiment a cylinder 87 clamps jaws 80, 81 on to the rope and a cylinder 89 locks them by means of a rack 86. The jaws comprise spring-loaded sliding wedges. Fig. 11. The hook 24 may now be lowered, loaded and raised. This causes the burden 37, Fig. 3, to push out the lever 55 so that a link 42 pulls a nose of a sliding body 40 through a slit in a tube 23. Thus the burden raises the body 40 and compresses a spring 58. The body 40 actuates a cable 27 which rotates a ring 21, Fig. 1, of the valve 20 to allow the hammer 18 to drop and the valve stem 22 to move up to its original position. The cylinders operating the crab clamp and hook release are relieved and the associated parts return to their starting positions. A spring 61, Fig. 3,moves a lever 38 so that the body 40 can drop down, thereby rotating the ring 21 back to its original position. When the load is retracted a spring 65 is wound by a disc 63 and guide pulley 13, a pawl 66 preventing overwinding: The force of this spring assists the burden 37 in ensuring descent of the hook 24.
Patent GB-1004074-A (GB)
Title: Process for producing polyvinyl carbazole
Inventor: CORNISH ERIC HAYDN
IPC: C08F26/12
Filed: 1962-08-24
Abstract: Vinylcarbazole monomer is irradiated in the liquid state with high energy electrons to give polyvinylcarbazole.  The monomer may be irradiated in the molten state or in the liquid state in a plasticizer, e.g. dibutyl phthalate, naphthalene, indene, diphenyl and resins from fluorene and phenanthrene.  The monomer may be mixed with dicyclopentadiene and then polymerized.
Patent GB-466700-A (GB)
Title: Improvements in and relating to fluid valves
IPC: F16K1/38
Filed: 1936-11-28
Abstract: 466,700. Valve closure members. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 28, 1936, No. 32648. Convention date, Nov. 30, 1935. [Class 135] A fluid valve, more particularly for use in connection with high voltage electric switches, comprises a conical member f co-operating with a resilient metal seat d, the sealing surface of which is also conical but as a greater taper than that of the member f. As shown in Fig. 3, the seat may yield so far that the widest part of the seat opening contacts with the surface of the member f. The valve seat may be formed on a corrugated metal membrane, Fig. 1, held at its edges in a rubber frame e. The edges of the frame e may be rounded as shown at e<1> to avoid any cutting action. Also the edge of the membrane may be rolled. The elastic frame may be held in a further, rigid frame, or the membrane may be clamped directly in a rigid frame, with or without incisions. Specification 272,584, [Class 135], is referred to.
Patent GB-177202-A (GB)
Title: Combined clutch spring compressor and hub and wheel drawer
IPC: B60B29/00
Filed: 1920-11-19
Abstract: 177,202. Rossi, P. Nov. 19, 1920. Removing wheels from shafts; rigid-jaw wrenches.-A combined wheel and hub drawer and clutch spring compressor comprises a body a screwing on a part b through which a long spindle c is threaded, the spindle at its upper end having a pin and socket connection with a nut-engaging socket d having a ring e screwing thereon. For withdrawing a wheel or hub from its shaft, the wheel or hub is engaged by one of the internally or externally threaded ends of the body a or by the threaded part b, and the threaded spindle c is rotated by means of a spanner on its square part to engage the end of the wheel or hub shaft, the pressure being taken by a steel ball inserted in the end of the spindle. Fig. 5 shows the spring compressor in use for replacing the nut of a cone clutch. With the clutch shaft nut engaged in the socket d and the ring e advanced to engage the clutch spring i, the device is placed in position with the part b bearing against the gear-box k or other suitable support and the part d is rotated, the ring e being locked to rotate therewith by a stud on the spring f, Fig. 1, so that the spring i is pushed back as the nut is screwed up. For the last few turns the stud on the spring f is released, the ring e being then held stationary by the spring i whilst the nut is turned to its permanent position. Fig. 6 shows the application of the device in similar manner for pressing forward the housing m of an inverted clutch number enabling the ring h to be placed in position and the nuts l screwed on the fly-wheel n.
Patent GB-211261-A (GB)
Title: Improvements relating to braking mechanism for road vehicles
IPC: F16D51/12
Filed: 1922-11-30
Abstract: 211,261. Hilton, G. T. Nov. 30, 1922. Blocks acting on drums actuated or applied by springs.- The blocks are carried on radially disposed slidable spokes and are acted upon bv springs which tend to force the blocks into engagement with the braking surface. The spokes 7 carrying the blocks 8 slide at their inner ends in a boss 6 on a fixed disc 5 while their outer ends are pivoted to a link 10 connected at one end to the disc 5 by a pivot 11. Each link is extended at 12 and connected by a link 14 to a rotatable plate 13. Helical springs 16 surrounding the spokes force the blocks 8 outwards. The plate 13 may be actuated by any suitable mechanism, a projection 15 extending through a slot in the fixed plate 5 for the purpose. One or more springs may be dispensed with or leaf springs may be substituted' for spiral springs. Instead of the spokes sliding in the boss 6 at their inner ends, they may be connected to tie plate 5 at their ends by links which are parallel to the links 10. In a modification, the plate 13 may have inclined faces adapted to co-operate with corresponding inclined faces on the stems 7 for withdrawing the brake blocks.
Patent GB-853103-A (GB)
Title: Improvements in or relating to nickel-base alloys
Inventor: HARRIS GEOFFREY THOMAS
IPC: C22C19/00
Filed: 1955-11-16
Abstract: A nickel base alloy having a high creep resistance and suitable for castings comprises Cr 5-30%, Al > 5-10%, W 2-10%, Mo 3-15%, B 0.1-2%, C 0.05-0.5%, Mn 0.05-2%, Si 0.05-2%, Co 30%, Fe 20%, Nb > 1-6%, Ni *?* 50% balance.  The W and Mo together exceed 5%.  The following may also be added:- Ti 5%, Ta 6%, Be 2%, Cu 5%, V 5%. Also customary deoxidants in normal quantities.  Specification 607,616 is referred to.